Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (41,710)	$ (19,809)	$ (108,810)	$ (54,281)
Other comprehensive loss, net of tax:
Net unrealized losses on investments	(289)	(1,041)	(727)	(1,043)
Other comprehensive loss, net of tax	(289)	(1,041)	(727)	(1,043)
Comprehensive loss	$ (41,999)	$ (20,850)	$ (109,537)	$ (55,324)